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2007-07-06 News Release

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Polyurethanes for top mounts, dike breakwaters, mattresses and car interiors

By using polyurethanes, complex composites can be produced faster, more cost effectively and with considerably smaller weight.

Article continued from previous pages [1] [2] [3]

By using novel cross-linking Thermoplastic Polyurethanes (TPUs), trade name Elastollan*, BASF’s subsidiary Elastogran offers an innovative alternative for rubber in rubber-metal composites as used in damping systems of machines. The metal component in these systems can, at the same time, be replaced by Ultramid* CR. This way complex composites can be produced faster, more cost effectively and with considerably smaller weight.

The polyurethane (PU) system Elastocoast* has been developed for coastal protection. With the elastomeric material one can secure dike breakwaters better than with conventional rigid systems, since the layers of stone are glued together elastically. First commercial projects have been realized at the German North Sea coast and demonstrate the high value of the system.

Effective coastal defences through the Elastocoast polyurethane system. Click Here for High resolution image. photo: BASF

The new PU technology can contribute to securing endangered segments of coastline. In contrast to conventional rigid breakwater structures composed of concrete or asphalt, the plastics bonds the broken stones to one another only at certain points but elastically. In this way it absorbs the energy of the insurgent volumes of water. Several pilot projects demonstrate the advantages of the system.

A polyol made from castor oil can be found now in Elastogran’s product portfolio, so that customers are able to manufacture flexible foams that consist of almost 25% of renewable material. The polyol is called Lupranol* Balance 50 and it was developed by using innovative reactive catalysts.

Soft-touch feelings in the automotive interior can be generated in different ways by using polyurethanes (PU). In addition to the well-known cast skin technique, Elastogran is now offering in Europe the spray skin method which is easier in terms of tools. The aromatic PU specialty belongs to the Elastoskin* family. A new Elastollan grade achieves a similar target: The aliphatic hard phase-modified TPU, in brief HPM-TPU, leads to soft touch by simple two-component injection molding. BMW is already using the material in series production.

Systems and visions: Of car seats, wood coating, extrusion, medical technology and plasticizers
The newly founded car seat competence team focuses BASF Group’s whole know-how about car seat materials. In this context it was shown on a prototype that a car seat can almost completely be made of BASF products. Application experts are offering the complete knowledge now to car manufacturers and Tier 1-suppliers in a concise and easily accessible manner.

The coating system PermaSkin* which uses films made of the styrenic plastic specialty Luran* S (ASA) for the coating of wooden doors, e.g., has been transformed into an independent business model. Door manufacturers receive the coating machine on leasinig-basis as well as the film and the adhesive directly from BASF. They can thus produce doors or similar products cost-effectively without wet coating and with no initial investment.

A fourth product is now added to the three standard injection molding grades in BASF’s ABS commodity product range. Terluran* SP-6 has been developed explicitly for extrusion and it is produced under the highly cost-efficient conditions in BASF’s word scale ABS plant in Antwerp, Belgium.

Plastics for medical technology have to fulfill very high safety standards. BASF has significantly extended its plastics portfolio for this growing market. A new Terlux* (MABS) with improved flow properties (Terlux 2812 HD) and the first engineering plastics – two copolymer polyacetals (POM), Ultraform* PRO by name – are now available for medical technology applications and include a comprehensive package of special test and certificate services.

Among BASF’s plasticizers for PVC there are two especially remarkable ones. Palatinol* 10-P is used for roof sheeting and cables. Hexamoll* DINCH is an alternative to phthalates specifically developed for the use in sensitive applications like children’s toys. It is the most thoroughly investigated of all plasticizers worldwide.

* Elastollan, Elastocoast, Lupranol, Hexamoll, Palatinol, Elastoskin, Luran, PermaSkin, Terluran, Terlux, Ultramid and Ultraform are registered trademarks of BASF Aktiengesellschaft.

This article was continued from other feature pages [1] BASF Plastics pre K 2007 news conference introduction, [2] Design and Packaging, [3] Integrative Simulation and a new PA marketing concept, and [4] Polyurethane for top mounts, dike breakwaters, mattresses and car interiors.

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